这段代码

int nSize = nW * nH ;

BYTE* p = new BYTE[nSize];
BYTE* s = p;


if (pBuf != NULL)
{
for (int i = 0; i < nSize*3; i++)
{
if (i%3 == 0)
{
memcpy(s, pBuf, 1); //memcpy(p, pBuf, nSize);
s++;
}
pBuf++;
}

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转载自blog.csdn.net/iwilldoitx/article/details/80330746